public virtual Antlr4.Runtime.Atn.ATNConfig AppendContext(PredictionContext context, PredictionContextCache contextCache)
{
PredictionContext appendedContext = Context.AppendContext(context, contextCache);
Antlr4.Runtime.Atn.ATNConfig result = Transform(State, appendedContext, false);
return(result);
}
public virtual bool Equals(Antlr4.Runtime.Atn.ATNConfig other)
{
if (this == other)
{
return(true);
}
else
{
if (other == null)
{
return(false);
}
}
return(this.State.stateNumber == other.State.stateNumber && this.Alt == other.Alt && this.ReachesIntoOuterContext == other.ReachesIntoOuterContext && this.Context.Equals(other.Context) && this.SemanticContext.Equals(other.SemanticContext) && this.PrecedenceFilterSuppressed == other.PrecedenceFilterSuppressed && this.PassedThroughNonGreedyDecision == other.PassedThroughNonGreedyDecision && EqualityComparer <LexerActionExecutor> .Default.Equals(this.ActionExecutor, other.ActionExecutor));
}
public virtual bool Contains(Antlr4.Runtime.Atn.ATNConfig subconfig)
{
if (this.State.stateNumber != subconfig.State.stateNumber || this.Alt != subconfig.Alt || !this.SemanticContext.Equals(subconfig.SemanticContext))
{
return(false);
}
Stack <PredictionContext> leftWorkList = new Stack <PredictionContext>();
Stack <PredictionContext> rightWorkList = new Stack <PredictionContext>();
leftWorkList.Push(Context);
rightWorkList.Push(subconfig.Context);
while (leftWorkList.Count > 0)
{
PredictionContext left = leftWorkList.Pop();
PredictionContext right = rightWorkList.Pop();
if (left == right)
{
return(true);
}
if (left.Size < right.Size)
{
return(false);
}
if (right.IsEmpty)
{
return(left.HasEmpty);
}
else
{
for (int i = 0; i < right.Size; i++)
{
int index = left.FindReturnState(right.GetReturnState(i));
if (index < 0)
{
// assumes invokingStates has no duplicate entries
return(false);
}
leftWorkList.Push(left.GetParent(index));
rightWorkList.Push(right.GetParent(i));
}
}
}
return(false);
}
protected internal ATNConfig([NotNull] Antlr4.Runtime.Atn.ATNConfig c, [NotNull] ATNState state, [NotNull] PredictionContext context)
{
this.state = state;
this.altAndOuterContextDepth = c.altAndOuterContextDepth;
this.context = context;
}
private static bool CheckNonGreedyDecision(Antlr4.Runtime.Atn.ATNConfig source, ATNState target)
{
return(source.PassedThroughNonGreedyDecision || target is DecisionState && ((DecisionState)target).nonGreedy);
}
